Deep geothermal resources survey project in the Kakkonda geothermal field

Journal Article · Thu Oct 01 04:00:00 EDT 1998 · Energy Sources

DOI:https://doi.org/10.1080/00908319808970096· OSTI ID:659161

Uchida, Toshihiro; Akaku, Kohei; Yanagisawa, Norio; Kamenosono, Hiroyuki ^[1]; Sasaki, Munetake ^[2]; Miyazaki, Shinichi; Doi, Nobuo ^[3]

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1. New Energy and Industrial Technology Development Organization, Tokyo (Japan)
2. Geological Survey of Japan, Ibaraki (Japan)
3. Japan Metals and Chemicals Co Ltd., Tokyo (Japan)

The New Energy and Industrial Technology Development Organization (NEDO) has been conducting a research project named Deep-Seated Geothermal Resources Survey since 1992 in order to establish a desirable direction for development of deep geothermal resources that exist beneath the already developed shallow reservoirs. A deep drill hole, WD-1, reached a depth of 3,729 m in July 1995 by applying the latest drilling techniques, such as a top-drive drilling system, enabling the collection of highly valuable information for understanding the characteristics of deep geothermal systems. Side-track drilling of WD-1 was started from a depth of 2,200 m in September 1996, targeting productive fractures expected near the boundary of the granite in a depth range from 2,800 to 3,000 m. The authors successfully encountered large lost circulation at some depths, and the side-track drilling was terminated at a depth of 2,963 m in January 1997.

• Sponsoring Organization: USDOE
• OSTI ID: 659161
• Journal Information: Energy Sources, Journal Name: Energy Sources Journal Issue: 8 Vol. 20; ISSN 0090-8312; ISSN EGYSAO
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
DIRECTIONAL DRILLING
DRILLING EQUIPMENT
GEOTHERMAL WELLS
KAKKONDA GEOTHERMAL FIELD
RESERVOIR ENGINEERING
RESOURCE DEVELOPMENT
WELL DRILLING